Warp-stop-motion mechanism.



No. 890,093. PATENTED JUNEQ, 1908. Q

' W C PERRY h WARP STOP MOTION MECHANISM.

APPLICATION FILED APR- 4. 1907.

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WITNESSES- INVENTDR.

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N01 890,093. PATENTED JUNE 9, 1908. W. C. PERRY.

WARP STOP MOTION MEGHANISM.

APPLICATION FILED APR. 4L 1907,

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WITNESSES. INVENTDR.

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WILLIAM G. PERRY, OF GHARLESTOWN, RHODE ISLAND.

WARP-STOP-MOTION MECHANISM.

Specification of Letters Patent.

Patented June 9, 1908.

Application filed April 4, 1907. Serial No. 366,407.

To all whom it may concern:

Be it known that 1, WILLIAM C. PERRY, a citizen of the United States, residing at Charlestown, in the county of Washington and State of Rhode Island, have invented certain new and useful Improvements in lVarp-Stop-NIotion Mechanisms, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to warp-stop motions for warping machines, looms and all machines in which warps are used, and has for its essential objects simplicity, cheapness, and facility of operation.

The invention consists in providing tilted supports or indicators for the warp threads, and maintaining the same under control under all conditions, and adapting the mechanism to use with a varying number of warp threads.

Further invention resides in the means for engaging and disengaging the driving mech anism, and in providing a novel form of lease plate.

Further novel construction and combination of parts will be hereinafter pointed out in the specification and claims.

In the drawings which constitute a part of these specifications Figures 1, 2 and 3 are plan, front and end elevations respectively of a machine embodying my invention. Fig. 4, a transverse section of the same on line a a: of Fig. 2, and Fig. 5, a plan of one of the indicators.

In Figs. 1 and 2, portions of the parts are shown broken away.

Like reference characters indicate like parts throughout the views.

The mechanism of my novel warp-stop motion may be applied, with inconsequential and obvious changes in detail, to any machines wherein warp threads are employed. The framework may be of any form of construction suitable for carrying the several details of mechanism.

In the form thereof herein shown, it consists essentially of end standards, 1, to which are fixed by adjusted screws, 2, in vertical slots, 3, the ends, 4, of a horizontal frame comprisin the front and rear walls, 6 and 7, respectiveIy. The frame is divided at intervals with transverse partitions, 8, of considerable depth, dividing the frame into a series of transverse sections. The supports or standards, 1, are provided with front and rear extensions or brackets, 9 and 10, respectively. Adjustably fixed to the brackets, 9, by screws, 11, is a lease plate, 12, comprising provided with oblong slots, 14, through which ass screws, 11. The lease plate extends forwardly and upwardly, and is provided at regular intervals with vertical slits, 15, extending from near its top to its base, and midway the upturned portion of the plate are a series of holes, 16, alternating with the slits and in horizontal alinement with each other. The holes, 16, permit the passage of alternate warp threads. The inner ends of the supporting arms, 13, are upturned and provided with sockets, 17, in which are fixed by screws, 18, tension bar, 19, under which the warp-threads, 20, pass to the openings and slits, 15, and 16, of the lease plate.

Vertical supports, 21, are fixed by screws, 22, upon the rear brackets, 10, and have attached thereto by screws, 23, abar, 24:, provided with perforations, 25, through which the Warp-threads pass to the indicators or tilts, 26. In detail, the indicators consist of thin metallic plates whose forward ends, 27, are upwardly directed and channeled or bifurcated as at 28 in Fig. 5.

The indicators broaden rearwardly and each have a notch, 29, in their rear ends, adapted to receive the end of a tongue, 30, projecting from a vertical plate, 31,whose lower end is bent to form a loop, 32, which frictionally engages a rod, 33, mounted in the standards, 1. The described plate is one of a series of like structure and similarly mounted, there being one of these supporting plates for each section or compartment of the frame. Each indicator is provided with an opening, 34, off center towards its forward end. A the frame, and running lengthwise thereof near the plane of the top of the frame loosely traverses the openings-34, of the indicators, which are mounted adjacent each other throughout the length of the box. The intervening partitions, 8, serve to prevent crowding and excessive frictional contact of the indicator surfaces.

A red, 36, is loosely mounted in bearings, 37, upon the base of the standards, 21, and has its ends bent into semicircular arms, 38, whose ends are fixed in a flat presser bar, 39. Cleatsg lmgare fixed to the rear iend ofjhe horizontal supporting arms, 13,

red, 35, fixed in the ends of brackets, 10, behind the rings, 37, upon which the arms, 38, of the presser device rests when not in use.

Mounted to turn in the standards, 1, and traversing the frame is a shaft, 40, having a longitudinal groove, 41, throughout the portion intermediate the end walls, 4, rectangular in cross section. Loosely mounted on this shaft near its end, is a driving pulley, 42, driven by belt, 43. The inner face of this pulley is provided with V-shaped pro ections, 44, having flattened or beveled sides, 45, which projections are located diametrically opposite each other. Upon the outer face of the pulley near its margin are fixed two pins or studs, 46, diametrically opposite each other, on which are mounted anti-friction rollers, 47. A collar, 48, is fixed by a screv, 49, to the end of the shaft. A compression spring, 50, also surrounds the shaft, and its ends bear against the collar, 48 and pulley, 42. A second collar, 51, is fixed by a screw, 52, to the shaft, adjacent the inner face of the pulley, and is provided upon its end face with V-shaped cavities, 53, in diametrical alinement with each other, and adapted to receive the projections, 44, of the pulley.

Fixed to the outer face of one of the standards, 1, by screws, 55, or otherwise, are the supports or brackets, 56, jointed at their outer ends by a flat bar, 57. Slidably mounted in the arms, 56, parallel with the bar, 57, is a rod, 58, whose end is pivotally connected to a shipper rod, 60, which shifts the driving belt of the machine. This belt,

and the shipping mechanism being of the usual well known construction, is not herein shown. Adjacent the inner face of one of the arms, 56, is a collar, 61, fixed to rod, 58, by a screw, 62, and serves as a stop for the latter. An angle plate is fixed by a screw, 63, to the rod, 58. This plate comprises a leg, 64, resting on the bar, 57, and a vertical leg, 65, projecting in the path of the rollers, 47, when the pulley is in disengaged position. A tension spring, 66, has its ends fixed to the leg, 64, of the angle plate and to one of the arms, 56.

The operation of my machine is as follows: The warp-threads pass through the plate, 24,

through the channels, 28, of the indicators,

26, below the tension bar, 19, and the slits and openings, 15 and 1.6, of the lease plate. The tongues, 30, of the supporting plates are pushed rearwardly and out of engagement with the ends of the indicators of the section or sections to be operated. In the sections not operated, the tongues remain in engagement with the indicators. When a thread breaks the rear end of the indicator falls into the channel, 41, of the rotating shaft, 40, and thereby stop its revolution and thereby the operation of the machine, as follows: The stoppage of the collar, 51, in relation to the continued rotation of the pulley, 42, causes the projections, 44, to slide out of their seats, 52, in the collar, and ride upon the face of the latter. This position of the pulley brings leg, 65, of the angle plate into the path of one of the rollers, 47, which contacts therewith and forces the rod, 58, rearwardly against the tension of spring, 66, thereby stopping the machine through the shipper rod, 60. Meanwhile, if the machine be started again and an indicator is still disengaged, the rotating pulley, 42, under the influence of spring 50, alternately seats and unseats itself in the collar, 51, without moving the shaft, 40, until the blocking indicator is disengaged therefrom.

Since the indicators when not in use naturally assume the position shown in broken lines in Fig. 4, it is necessary that they be turned to horizontal position preparatory to engaging the same with the supporting plate, 31, which when not engaged is in the position shown in broken lines. This is performed by manually swinging forwardly and downwardly the presser bar, 39, upon the uptilted indicators into the position indicated in the last mentioned. figure.

The division of the frame into compartments adapts it to operation with any desired number of warp-threads.

What I claim is,

1. As a new article of manufacture, a flat detector for warp-stop motion mechanisms, oblong in shape and provided with an open.- ing off center toward its forward end adapted to receive an axial support, and having its forward upper edge longitudinally bifurcated to receive the warp thread.

2. As a new article of manufacture, a flat detector for warp-stop motion mechanisms, oblong in shape and provided with an opening off center toward its forward. end adapted to receive an axial support, provided also with channel upon the upper margin of one end to reeeive the warp thread, and. provided with a cavity upon the opposite end adapted to engage a support.

3. In a warp stop-motion mechanism, a series of flat detectors each having its upper edge longitudinally bifurcated to receive a warp thread, whereby the indicator is normally held in inoperative position, an axial support loosely extending through the detectors off center and stopping means for the mechanism operated by or through the abnormal positioning of a detector.

4. In a warp stop-motion mechanism, an axial detector support, fiat detectors loosely mounted upon the axial support and provided with channels upon their upper margins to receive the warp threads which normally maintain the detectors in inoperative position, a rotary shaft adapted to cooperate with an abnormally positioned detector, and stopping means for the mechanism operated by or through the engagement of the rotary shaft with an abnormally positioned detector.

5. In a warp stop-motion mechanism, an axial detector support, detectors loosely mounted off center upon the axial support and adapted to receive the warp threads upon their ends whereby the detectors are normally held in horizontal position, a rotating shaft mounted adjacent the detectors and adapted to be engaged and stopped by the release of a detector, and stopping instrumentalities actuated by the stopping of the shaft.

6. In a warp stop-motion mechanism, an axial detector support, detectors loosely mounted ol'l center upon the axial support and maintained in horizontal position by the contact of the warp threads upon their ends, a rotating shaft provided with. an angular groove mounted adjacent and below the indicators and adapted to receive the margin of a released indicator in the groove, and stopping instrumentalities actuated by the stopping of the shaft.

7. In a warp stop-motion mechanism, the combination with a frame, of an axial detector support mounted therein, transverse partitions in the frame forming a plurality of compartments, a series of indicators pivotally mounted. in each compartment upon the axial support, and supports in each compartment for maintaining its indicators in inoperative position, independently of the-position of the indicators in another compartment, means in the frame adapted to be operated by a released detector, and stopping instrumentalities adapted to be operated by the operating means.

8. In a warp stop-motion mechanism the combination with a frame, of an axial detector support mounted therein, a plurality of compartments in theframe, a series of indicators pivotally mounted in each compartment upon the axial support, and means upon the frame in each compartment adapted to engage and support the free ends of the indicators.

9. As a new article of manufacture a lease plate for stop motion mechanism comprising an inclined body, supporting arms upon the body, said body being provided with a series of vertical slits and with a series of holes alternatii'ig with the slits.

10. In a warp stop-motion mechanism, the combination with the frame, of an axial detector support mounted therein, a series of indicators pivotally mounted off center upon the axial support and projecting over a wall of the frame, and a presser bar pivotally mounted upon the frame and adapted to rest upon the projecting portions of the indicaters 1 1. In a warp stop-motion mechanism, the combination w1th the frame, of an axial detector support mounted therein, a series of indicators pivotally mounted upon the axial support, means upon the detectors for receivj ing the warp threads, a bar fixed to therear of l the frame provided with perforations to acl commodate the warp threads, a tension bar 5 mounted upon the forward portion of the frame under which the threads pass from the j indicators, and a lease plate mounted upon the frame adjacent the tension bar adapted j to receive the threads from the tension bar.

j 12. In a warp stop-motion mechanism the l combination with the indicators, of a rotary shaft adjacent the indicators and adapted to be checked by the contact of an abnormally positioned indicator, of a collar fixed to the shaft provided with seats in its face, a power pulley loosely mounted upon the shaft, projections upon the pulley adapted to normally register in the collar seats, means upon the shaft for pressing the pulley towards the collar, rollers upon the pulley, a shipper rod, a slide rod pivoted to the shipper rod and a contact plate fixed to the slide rod adapted to receive an impact from a roller when the rotation of the shaft is checked.

13. In a warp stop-motion mechanism the combination with the indicators and a rotary shaft adapted'to be checked by an abnormally positioned indicator, of a collar fixed to the shaft provided with seats, a power pulley loose upon the shaft, projections upon the pulley entering the collar seats, contacts upon the pulley, yielding means for pressing the pulley towards the collar, a shipper rod, a slide rod pivoted to the shipper rod, and a contact plate upon the slide rod normally out of the path of the contacts, but adapted to cooperate therewith when. the rotation of the shaft is checked.

1.4. In a warp stop-motion mechanism, an axial detector support, detectors loosely mounted upon the axial support and maintained in horizontal position by the contact of the warp threads upon their ends, a rotating shaft provided with an angular groove mounted adjacent and below the indicators and adapted to receive the margin of a re leased indicator in the groove and stopping instrumentalities actuated by the stopping of the shaft.

Intestimony whereof I have affixed my signature in presence of two witnesses.

VVILLIAh l C. PERRY.

Witnesses:

Hoim'rro E. BELLOWS, WALTER E. GooDwrN. 

